package com.uziot.activiti6.controller.editor;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import io.swagger.annotations.Api;
import lombok.extern.slf4j.Slf4j;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.repository.Model;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.nio.charset.StandardCharsets;


/**
 * @author shidt
 * @version V1.0
 * @className ModelEditorJsonRestResource
 * @date 2021-02-26 10:38:41
 * @description
 */

@Slf4j
@Api(tags = "编辑器-编辑报文转换")
@RestController
@RequestMapping(value = "/service")
public class ModelEditorJsonRestResource implements ModelDataJsonConstants {

    @Autowired
    private RepositoryService repositoryService;
    @Autowired
    private ObjectMapper objectMapper;

    @GetMapping(value = "/model/{modelId}/json", produces = "application/json")
    public ObjectNode getEditorJson(@PathVariable String modelId) {
        ObjectNode modelNode = null;

        Model model = repositoryService.getModel(modelId);

        if (model != null) {
            try {
                if (StringUtils.isNotEmpty(model.getMetaInfo())) {
                    modelNode = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
                } else {
                    modelNode = objectMapper.createObjectNode();
                    modelNode.put(MODEL_NAME, model.getName());
                }
                modelNode.put(MODEL_ID, model.getId());
                ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(
                        new String(repositoryService.getModelEditorSource(model.getId()), StandardCharsets.UTF_8));
                modelNode.put("model", editorJsonNode);

            } catch (Exception e) {
                log.error("Error creating model JSON", e);
                throw new ActivitiException("Error creating model JSON", e);
            }
        }
        return modelNode;
    }
}
